{"id":339311,"date":"2023-12-19T12:08:40","date_gmt":"2023-12-19T12:08:40","guid":{"rendered":"\/forum\/?post_type=topic&p=339311"},"modified":"2023-12-19T12:08:40","modified_gmt":"2023-12-19T12:08:40","slug":"simulation-of-a-phase-change-material-within-concentric-pipes","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulation-of-a-phase-change-material-within-concentric-pipes\/","title":{"rendered":"Simulation of a Phase Change Material within concentric pipes"},"content":{"rendered":"

Hi everyone, <\/p>\n

I am working on the simulation of the melting process of a PCM. I created on ANSYS DM a geometry with two concentric cylinders, where in the inner pipe flows an heat transfer fluid (water), while in the outer one is enclosed a PCM, as reported in the picture below:<\/p>\n

<\/p>\n

I created a new material with the following properties:<\/p>\n

<\/p>\n

Initially the temperature field of paraffin is set to 300 K (melting temperature is around 322 K and 328 K), the inlet BC are mass flow rate of water 0.05 kg\/s and temperature of the inner pipe of 400 K. The outer pipe was set to adiabatic condition.<\/p>\n

I have obtained the following contour plots for liquid fraction and temperature:<\/p>\n

<\/p>\n

Now I want to graphically visualize:<\/p>\n

    \n
  1. The phase change on a time-temperature diagram<\/strong> with Fluent<\/li>\n
  2. Change the boundary condition<\/strong> of the inner pipe from constant temperature to temperature profile<\/strong> (function of time) with a Named Expression<\/li>\n<\/ol>\n

    How can I do this?<\/p>\n

     <\/p>\n

    Best regards<\/p>\n

     <\/p>\n

     <\/p>\n

     <\/p>\n

     <\/p>\n

     <\/p>\n","protected":false},"template":"","class_list":["post-339311","topic","type-topic","status-closed","hentry","topic-tag-fluent-ansys-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t